Sparking device for internal-combustion motors



Dec. 4, 19 3. 1,476,252

A. c. HEMPEL SPARKING DEVICE FOR INTERNAL COMBUSTION MOTORS Filed Dec.15 1921 Qwuentoz wrm Patented Dec. 4, 1923.

ALBERT o. HEM-BEL, onsanrnarnrnxns.

/ SPARKING- nnvrcnroe m rnaivan oonnusrronmoronsii. 4

Application filedhecember5,1921. saints. szaeiv.

To all whom it may concern:

Be itknown that I, ALBERT C. HEMP L, a citizen or the United States ofAmerica,.and

resident of Bartlett, in the county of'Bell Sand State of'Texas haveinvented certain new and useful Improvements in Sparking Devices forInternal-CombuStion Motors, of which the following is a specification."

This invention relates to igniting means for internal combustion motors, and has'referen'ce particularly to novel means whereby a plurality ofsparks areproduced in a combustion chamber of a'mo'tor to insure properfiring of the charge therein.

A further object of this invention is to provide a sparking device ifthe character indicated, capable of being used in association with sparkplugs such as are now commonly employed, with the exception that thespark plug must be devoid of a ground ing electrode.

A still further object of this invention is to provide a sparking deviceof the character indicated which may be installed in motors in a mannerto prevent their being fouled by carbon, oil or the like, and wherebythe contact between the electrode of the spark plug and the conductor ofthe sparking device may be so housed as to prevent the accumulation ofcarbon or oil which might have a tendency to interrupt the circuitbetween the sparking plu and the conductor leading to the sparkingevice.

A. still further object of this invention is to produce a sparkingdevice having an in sulating body adapted to be secured on the interiorof a cylinder head in association with a sparking plug applied to theusual spark plug socket or hole.

lVith the foregoing and other objects in view, the invention consists inthe details of construction, and in the arrangement and combination ofparts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to theaccompanying drawings forming part of this application wherein likecharacters denote corresponding parts in the several views, and inwhich- Figure 1 illustrates a sectional view of a fragment of thecylinder head, showing a de- 4 vice embodying the invention appliedthereto; V

Figure 2 illustrates a sectional view on the 55 line 2-2 of Fig. 1; and

' izr aregs mates carryin out the invention, I employ a spark plug 5threaded acylinder head 6, the jspark plug having 'a singleelectrode "7q'vhi'ch is adapted to conduct current to the sparkingdevice, as willpresently appear.

Within the cylinderhe ad I prefer to. an-

chor' the 'sparking device which, .in the present eniljodimntjof theinvention, comprises twofinsulating{disks 8 and, 9, secured. to-

geth r b rastenngs 103mm 1 1, which maybe 'intl'ie nature of bolts; thefastening 11 being employed also as a ground connection for the circuit.

The insulating disk 8 has an aperture 12 therein through which theelectrode 7 projects, and the insulating disk?) has a recess 13 intowhich the said electrode projects.

A conductor 14 lies between the insulating disks and it terminates atthe recess 13 in position to be engaged by the electrode 7. Theconductor 14 extends through the in sulator 9 and projects over thesurface of the insulator 9. Another conductor 15 is anchored in theinsulator 9 with its end in proximity to the end of the conductor 14, inorder that a spark gap will be formed between the said conductors. Theconductor 15 is anchored in the insulator by reason of the fact that thesaid conductor 15 is looped as shown at 16, the said looped portionextending through the insulator, and the looped portion is bent toengage the inner surface of the said insulator so that the conductorcannot be displaced. There are a series of conductors 17, 18, 19, 20, 21and 22, all of which are preferably anchored in the insulator in themanner described. Of course these insulators may vary in number to suitparticular requirements, and they are in spaced relation to each other,in order to form spark gaps, so that when the current is deliveredthrough the conductors, a spark is produced at each of the spark gaps.The conductor 22 is grounded through the con ductor 23 which is anchoredon the securing member 11, thus establishing a sectional circuit withspark gaps between the spark plug and the ground. I

The conductor 14 where it engages the electrode of the spark plug isimbedded between the insulators, and hence these elements are protectedfrom the accumulation of foreign substances which might have a v anunderneath plan view- 0f the sa d device.

tendency to short circuit then 1 reason of the housing- "creatdibytheemsn' ator's pand even though the mi'iiture in the combustion chamberof the motor is not thoroughly" mixed, the sparkswhiclr'swillgrcoverraacoms paratively wide area of the combustionchamber, will:ireach ithearibher mimture and-i insure the ignition ofthe charge in the combustion chamber. 1

While I have shown the conductors asarranged in a circle; it mteundesesdfthat I v r rgledi-as, for-Jinstance, they"'coul'dibe*statione 7relation'tonthe ed erofftheinsuia r WithOut departing from t e spiritof-"theinve'ntion. Furthermore, the conductors 17 to 22 melusive can bearranged or anchoredgin the insulator'in different waysfand instead 0flooping the "saidcondfictors stated, they imbfedddor nqh'or'edantminsi11at and the iends: spread o ppsimiy or divergtntlj',

the aperture into the-recess, =a conductor im- "bedded'between the disksand having an end projecting into the recess, 7 conductors imbedded; in:the insulator and :h'avingspark gaps betweenfth'em, the said conductorsbeing in such relation to each other that current from the firstmentioned conductor will travel through' the said 1 conductors, and ameans for grounding one of the conductors.

ALBERT o. HEMPEL

